Editor’s note: This segment was rebroadcast on Sept. 30, 2025. Click here for that audio. In the early 2000s, thousands of U.S. schools had their students race the clock to stack cups in gym class.

When my 9-year-old son announced one day last week that he was learning to stack cups at school, I thought he was training to be a busboy. "Good," I said. "Unload the dishwasher." I have since learned ...

Most sports are actually absurd. Golf involves hitting a tiny ball into a hole hundreds of yards away. Soccer is based on the idea of what if we didn't use our hands. Speed stacking — if you really ...

The "Wisconsin Winter Stack Up" hosted some of the country's fastest cup stackers. Sport stacking is a competition in which competitors stack specially designed cups up and down in set patterns. Speed ...